Tweaks to Gnu automake/autoconf system.

[flightgear.git] / Time / fg_time.h

diff --git a/Time/fg_time.h b/Time/fg_time.h
index 5e6bed61d38ad8156f936b2de8426ca40296c682..c520166d51107de039411989a826bb4ca992d7d8 100644 (file)
--- a/Time/fg_time.h
+++ b/Time/fg_time.h
@@ -24,19 +24,21 @@
  **************************************************************************/
 
 
-#ifndef FG_TIME_H
-#define FG_TIME_H
+#ifndef _FG_TIME_H
+#define _FG_TIME_H
 
 
-#ifdef WIN32
+#include <config.h>
+
+#ifdef HAVE_WINDOWS_H
 #  include <windows.h>
 #endif
 
 #include <GL/glut.h>
 #include <time.h>
 
-#include "../types.h"
-#include "../Flight/flight.h"
+#include <Include/fg_types.h>
+#include <Flight/flight.h>
 
 
 /* Define a structure containing global time parameters */
@@ -56,6 +58,20 @@ struct fgTIME {
                            course result.  course + diff has good
                            accuracy for the short term */
 
+    long int warp;       /* An offset in seconds from the true time.
+                           Allows us to adjust the effective time of day. */
+
+    long int warp_delta; /* How much to change the value of warp each
+                           iteration.  Allows us to make time
+                           progress faster than normal. */
+};
+
+extern struct fgTIME cur_time_params;
+
+
+/* Lighting is time dependent so it shows up here */
+/* Define a structure containing the global lighting parameters */
+struct fgLIGHT {
     /* position of the sun in various forms */
     double sun_lon, sun_gc_lat;         /* in geocentric coordinates */
     struct fgCartesianPoint fg_sunpos;  /* in cartesian coordiantes */
@@ -63,25 +79,84 @@ struct fgTIME {
     GLfloat sun_vec_inv[4];             /* inverse (in view coordinates) */
     double sun_angle;                   /* the angle between the sun and the 
                                           local horizontal */
+
+    /* Derived lighting values */
+    GLfloat scene_ambient[3];           /* ambient component */
+    GLfloat scene_diffuse[3];           /* diffuse component */
+    GLfloat fog_color[4];               /* fog color */
+    GLfloat sky_color[4];               /* clear screen color */
 };
 
-extern struct fgTIME cur_time_params;
+extern struct fgLIGHT cur_light_params;
+
+typedef struct fg_timestamp_t {
+    long seconds;
+    long millis;
+} fg_timestamp;
+
+
+/* Portability wrap to get current time. */
+void timestamp(fg_timestamp *timestamp);
 
+/* Return duration in millis from first to last */
+long timediff(fg_timestamp *first, fg_timestamp *last);
+
+/* Return new timestamp given a time stamp and an interval to add in */
+void timesum(fg_timestamp *res, fg_timestamp *start, long millis);
 
 /* Initialize the time dependent variables */
 void fgTimeInit(struct fgTIME *t);
 
 /* Update the time dependent variables */
-void fgTimeUpdate(struct FLIGHT *f, struct fgTIME *t);
+void fgTimeUpdate(fgFLIGHT *f, struct fgTIME *t);
 
 
-#endif /* FG_TIME_H */
+#endif /* _FG_TIME_H */
 
 
 /* $Log$
-/* Revision 1.7  1997/11/25 19:25:41  curt
-/* Changes to integrate Durk's moon/sun code updates + clean up.
+/* Revision 1.18  1998/04/08 23:35:40  curt
+/* Tweaks to Gnu automake/autoconf system.
 /*
+ * Revision 1.17  1998/04/03 22:12:56  curt
+ * Converting to Gnu autoconf system.
+ * Centralized time handling differences.
+ *
+ * Revision 1.16  1998/02/07 15:29:47  curt
+ * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss
+ * <chotchkiss@namg.us.anritsu.com>
+ *
+ * Revision 1.15  1998/01/27 00:48:06  curt
+ * Incorporated Paul Bleisch's <bleisch@chromatic.com> new debug message
+ * system and commandline/config file processing code.
+ *
+ * Revision 1.14  1998/01/22 02:59:43  curt
+ * Changed #ifdef FILE_H to #ifdef _FILE_H
+ *
+ * Revision 1.13  1998/01/19 19:27:20  curt
+ * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
+ * This should simplify things tremendously.
+ *
+ * Revision 1.12  1998/01/05 18:44:37  curt
+ * Add an option to advance/decrease time from keyboard.
+ *
+ * Revision 1.11  1997/12/19 23:35:07  curt
+ * Lot's of tweaking with sky rendering and lighting.
+ *
+ * Revision 1.10  1997/12/15 23:55:07  curt
+ * Add xgl wrappers for debugging.
+ * Generate terrain normals on the fly.
+ *
+ * Revision 1.9  1997/12/10 22:37:55  curt
+ * Prepended "fg" on the name of all global structures that didn't have it yet.
+ * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
+ *
+ * Revision 1.8  1997/12/09 04:25:38  curt
+ * Working on adding a global lighting params structure.
+ *
+ * Revision 1.7  1997/11/25 19:25:41  curt
+ * Changes to integrate Durk's moon/sun code updates + clean up.
+ *
  * Revision 1.6  1997/09/20 03:34:35  curt
  * Still trying to get those durned stars aligned properly.
  *